JP3056404B2 - Special catch fork for pile driving for marine work boats - Google Patents
Special catch fork for pile driving for marine work boatsInfo
- Publication number
- JP3056404B2 JP3056404B2 JP7271172A JP27117295A JP3056404B2 JP 3056404 B2 JP3056404 B2 JP 3056404B2 JP 7271172 A JP7271172 A JP 7271172A JP 27117295 A JP27117295 A JP 27117295A JP 3056404 B2 JP3056404 B2 JP 3056404B2
- Authority
- JP
- Japan
- Prior art keywords
- catch fork
- special
- cylinder
- fork
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Jib Cranes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は海洋作業船用の杭打
ち用特殊キャッチフォ−クに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special catch fork for driving a marine work boat.
【０００２】[0002]
【従来の技術】従来の海洋作業用の杭打船は図１に示す
如く、旋回式フロ−ティングクレ−ン１上にブ−ム３及
びキャッチフォ−ク４でリ−ダ２を吊り、このリ−ダ２
へバイブロ又はハンマ−５も抱かせ、さらにパイルキャ
ッチ６で鋼管パイル７の中間部をかかえ、杭打込みの作
業を行っていた。2. Description of the Related Art As shown in FIG. 1, a conventional piling boat for offshore work has a leader 2 suspended by a boom 3 and a catch fork 4 on a revolving floating crane 1 as shown in FIG. This leader 2
Hevibros or hammers 5 were also held, and the pile catch 6 was used to carry the pile driving work while holding the middle part of the steel pipe pile 7.
【０００３】このような従来の旋回式フロ−ティングク
レ−ン１ではリ−ダ２とキャッチフォ−ク４がフロ−テ
ィングクレ−ン１への荷重となる。特にリ−ダ２を抱い
たままでのブ−ム３の起伏を考えた時、大容量のフロ−
ティングクレ−ン１が必要であった。又リ−ダ２自体４
０ｍ〜５０ｍと長い為、杭打ち専用として考えられてき
た。[0003] In such a conventional swiveling floating crane 1, the leader 2 and the catch fork 4 become loads on the floating crane 1. In particular, when considering the ups and downs of the boom 3 while holding the leader 2, a large flow
Ting crane 1 was required. Also, the leader 2 itself 4
Because it is as long as 0m to 50m, it has been considered only for pile driving.
【０００４】[0004]
【発明が解決しようとする課題】船台上に特殊アタッチ
メントを取付け・取外しが簡単でフロ−ティングクレ−
ンのブ−ムで吊り下げるものはハンマ−又はバイブロと
鋼管パイルのみにし、大容量のフロ−ティングクレ−ン
を不要とすること、さらにリ−ダを不要とし、船体側に
設けたキャッチフォ−ク先端部を交換することによって
作業の多様性を可能にし、芯出し性能を向上し、高所作
業を不要にし、さらには安全性をより向上させることの
可能なキャッチフォ−クを提供することを課題とする。SUMMARY OF THE INVENTION A floating attachment is easy to attach and detach a special attachment on the gantry.
Only the hammer or vibrator and the steel pipe pile are suspended by the boom of the feeder, so that a large-capacity floating crane is not required. -Provide a catch fork that enables a variety of work by replacing the tip end of the work, improves centering performance, eliminates the need for work at height, and further improves safety. That is the task.
【０００５】[0005]
【課題を解決するための手段】船台Ａ上に設けたフロ−
ティングクレ−ン１のブ−ム３にて吊下げたバイブロ又
はハンマ５で鋼管パイル７の上端を吊り、船台Ａに設置
した特殊キャッチフォ−ク８で鋼管パイル７の中間部を
抱込んで支持するようにした杭打ち装置であって、前記
特殊キャッチフォ−ク８は、シリンダ２２で入れ子式に
伸縮可能な２個の部材８ａと８ｂで構成された基部と、
該基部を構成する部材８ｂの端に設けたフレ−ム２１に
横フレ−ム２０と複数のシリンダ１９とを介し取付けら
れた基板１５と、該基板１５にピン結合され、かつ抱込
シリンダ１６，１７で互に屈曲可能にピン結合された上
下一対の抱込み用フレ−ム１２，１３とからなる。又基
部を構成する入子式部材の一方の部材８ｂの端とフレ−
ム２１との間に回転軸受２４を設け、シリンダ２３で回
転可能とした。さらに特殊キャッチフォ−ク８の基部に
ハンガ−２５を設け、これを船台Ａ上に設けたレ−ル２
６上に跨らせ横方向に摺動可能にした。さらに又特殊キ
ャッチフォ−ク８の基部が船台Ａ上に立設したピン２８
で枢支され、船台Ａ上に装着したシリンダ２９でキャッ
チフォ−ク８を円周方向に調整できるようにした。SUMMARY OF THE INVENTION A flow provided on a platform A is provided.
The upper end of the steel pipe pile 7 is hung by a vibrator or a hammer 5 hung by the boom 3 of the ting crane 1, and the middle part of the steel pipe pile 7 is hung by a special catch fork 8 installed on the stern A. A pile driving device adapted to be supported, wherein the special catch fork 8 is composed of two members 8a and 8b which can be telescopically extended by a cylinder 22;
A board 15 attached to a frame 21 provided at an end of the member 8b constituting the base via a horizontal frame 20 and a plurality of cylinders 19; , 17 and a pair of upper and lower embracing frames 12, 13 which are pin-connected to each other so as to be bendable. The end of one member 8b of the telescopic member constituting the base is connected to the frame.
A rotation bearing 24 is provided between the cylinder and the cylinder 21 so that the cylinder 23 can rotate. Further, a hanger 25 is provided at the base of the special catch fork 8 and is provided on the rail A.
6 and slidable in the lateral direction. Furthermore, the base of the special catch fork 8 is provided with a pin 28 standing on the stand A.
And the catch fork 8 can be adjusted in the circumferential direction by a cylinder 29 mounted on the boat A.
【０００６】[0006]
【発明の実施の形態】図１に基いて説明する。図１で１
は船台Ａ上に設けたフロ−ティングクレ−ンである。３
はブ−ムで、これによりバイブロ又はハンマ−５及び鋼
管パイル７を吊下げている。８は本発明に関る海洋作業
船杭打用の特殊キャッチフォ−クである。９は船台上の
油圧ユニットで、圧油を配管１０を介しキャッチフォ−
ク８に送り、これを作動させる。鋼管パイル７の中間部
を上下一対の抱込み用フレ−ム１２とこれに一端を枢着
されたフレ−ム１３及びこれら抱込み用フレ−ムが取付
けられた基板１５とで抱き込んでいる。抱込み用フレ−
ム１２は内側に２個のロ−ラ１４を、又抱込み用フレ−
ム１３は内側に１個のロ−ラ１４を備え、これらロ−ラ
１４と抱込み用フレ−ム１２が取付けられた基板１５に
取付けたロ−ラ１４の計４個のロ−ラ１４・・・が鋼管
パイル７に接し、鋼管パイル７を抱えている。フレ−ム
１２は基板１５に一端をピン結合され、フレ−ム１２の
他端にもう１つのフレ−ム１３がピン結合されている。
そして基板１５に取付けられた抱込シリンダ１６のロッ
ド端がフレ−ム１２の背部にピン結合されている。同様
にフレ−ム１２の背部に抱込シリンダ１７が取付けら
れ、そのロッド端がフレ−ム１３の背部にピン結合され
ている。１８は点検場で、この上に作業員が乗り、各部
の点検をすることができるようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1 in FIG.
Is a floating crane provided on the platform A. 3
Is a boom, by which a vibro or hammer 5 and a steel pipe pile 7 are suspended. Numeral 8 denotes a special catch fork for driving offshore work boats according to the present invention. Reference numeral 9 denotes a hydraulic unit on the sill, which catches pressure oil through a pipe 10.
8 and actuate it. An intermediate portion of the steel pipe pile 7 is held by a pair of upper and lower holding frames 12, a frame 13 having one end pivotally connected thereto, and a substrate 15 to which these holding frames are attached. . Frame for holding
12 has two rollers 14 on the inside and a frame for holding
The roller 13 is provided with a single roller 14 on the inner side, and a total of four rollers 14 including the roller 14 and the roller 14 mounted on the substrate 15 on which the holding frame 12 is mounted. .. Are in contact with the steel pipe pile 7 and hold the steel pipe pile 7. One end of the frame 12 is pin-connected to the substrate 15, and another frame 13 is pin-connected to the other end of the frame 12.
The rod end of the holding cylinder 16 attached to the substrate 15 is pin-connected to the back of the frame 12. Similarly, a holding cylinder 17 is attached to the back of the frame 12, and its rod end is pin-connected to the back of the frame 13. Reference numeral 18 denotes an inspection area on which an operator can ride and inspect each part.
【０００７】基板１５は上部でシリンダ１９、下部で横
フレ−ム２０により基部側に設けたフレ−ム２１に支持
されている。The substrate 15 is supported by a cylinder 19 on the upper side and a frame 21 provided on the base side by a horizontal frame 20 on the lower side.
【０００８】キャッチフォ−ク８の基部は、シリンダ２
２で入れ子式に伸縮可能な２個の部材８ａと８ｂで構成
されている。抱込み用フレ−ムが回転できるようにする
為、キャッチフォ−ク８の基部を構成する部材８ｂの端
に設けたフレ−ム８ｃに回転軸受２４が設けられ、この
回転軸受２４の他端に前記フレ−ム２１が取付けられ、
フレ−ム８ｃ側に設けたシリンダ２３で部材２３ａを介
して回転可能になっている。部材８ａの端にはハンガ−
２５が設けられ、シリンダ２７で船台側に設けたレ−ル
２６に沿って横方向に摺動可能に取付けられている。The base of the catch fork 8 is a cylinder 2
It is composed of two members 8a and 8b which can be telescopically extended by 2. In order to enable the holding frame to rotate, a rotating bearing 24 is provided on a frame 8c provided at an end of a member 8b constituting a base of the catch fork 8, and the other end of the rotating bearing 24 is provided. The frame 21 is attached to
A cylinder 23 provided on the frame 8c side is rotatable via a member 23a. A hanger is attached to the end of the member 8a.
25 is provided so as to be slidable laterally along a rail 26 provided on the side of the boat by a cylinder 27.
【０００９】図４と図５を参照するに、船台Ａ側にキャ
ッチフォ−ク８を構成する部材８ａが、船台Ａ上に立設
したピン２８でシリンダ２９によって回転可能に取付け
られている。この回転運動によってキャッチフォ−ク８
の円周方向調整を可能にしている。Referring to FIG. 4 and FIG. 5, a member 8a constituting the catch fork 8 is mounted rotatably by a cylinder 29 on a stand A side with a pin 28 standing on the stand A. This rotating motion causes the catch fork 8
In the circumferential direction.
【００１０】[0010]
【作動】図１の如く船台Ａの船首側に杭打ち用特殊キャ
ッチフォ−ク８を設置し、補助フック１１で鋼管パイル
７を吊り込む。キャッチフォ−ク８に設備された抱込み
用フレ−ム１２，１３と基板１５とで抱込シリンダ１
６，１７により鋼管パイル７を抱き込む。この時、芯出
しの為フレ−ム２１にセットされたシリンダ１９によ
り、前後の傾きを調整し、又キャッチフォ−ク８とフレ
−ム２１との間に装置された回転軸受２４をシリンダ２
３で回して右左の傾きを調整することにより、正確な芯
出しを可能としている。又杭打ち込み位置は入れ子式の
部材８ａと８ｂよりなる基部に取付けたシリンダ２２に
より、前出し及び引込み作業で全体の位置出しを行うこ
とができる。[Operation] As shown in FIG. 1, a special catch fork 8 for stakeout is installed on the bow side of the gantry A, and the steel pipe pile 7 is suspended by the auxiliary hook 11. The holding cylinder 1 is composed of the holding frames 12 and 13 provided on the catch fork 8 and the substrate 15.
6 and 17 embrace the steel pipe pile 7. At this time, the front and rear inclinations are adjusted by the cylinder 19 set on the frame 21 for centering, and the rotary bearing 24 installed between the catch fork 8 and the frame 21 is moved to the cylinder 2.
By turning at 3 to adjust the right and left inclination, accurate centering is enabled. In addition, the pile driving position can be entirely positioned by a retracting operation and a retracting operation by a cylinder 22 attached to a base composed of nested members 8a and 8b.
【００１１】本装置は、前後傾の斜杭仕様に対してもシ
リンダ１９とシリンダ２３により任意の角度を保持する
ことが可能である。The present apparatus can maintain an arbitrary angle by the cylinder 19 and the cylinder 23 even in the case of the inclined pile specification inclined forward and backward.
【００１２】又鋼管パイル７を一列に打ち込む作業時に
は、船台Ａの移動を行うことなくレ−ル２６を船台Ａに
設置したので、取付けたハンガ−２５のシリンダ２７に
よる横移動で多数の杭を打設することができる。When the steel pipe piles 7 are driven in a row, the rails 26 are set on the gantry A without moving the gantry A, so that a large number of piles are moved by the cylinder 27 of the hanger 25 mounted. Can be cast.
【００１３】さらに図４，図５の例ではピン２８により
シリンダ２９により円周移動を行わせることができる。Further, in the examples shown in FIGS. 4 and 5, the cylinder 28 can be moved circumferentially by the pin 28.
【００１４】点検場１８を設けたので、各部の作動をチ
ェックすることができるので安全上・作業性能上好適で
ある。Since the inspection place 18 is provided, the operation of each part can be checked, which is preferable in terms of safety and work performance.
【００１５】[0015]
【効果】請求項１の構成にしたので、鋼管パイル７を船
台Ａ上のフロ−ティングクレ−ンで吊下げ、同じく船台
Ａに設けた特殊キャッチフォ−ク８で鋼管パイル７の中
間部を抱き込むようにしたので、従来の作業のごとくリ
−ダを必要とせず、フロ−ティングクレ−ンの容量を一
段と軽減できる。又請求項２の如く、キャッチフォ−ク
の抱込み部を回転軸受２４とシリンダ２３を介し回転可
能に取付けたので、キャッチフォ−クの円周方向位置調
整を容易に行うことができる。さらに請求項３により、
船台Ａの移動を行うことなく、ハンガ−２５をシリンダ
−２７で摺動させるだけで、多数の杭を打設でき能率的
となった。さらに又請求項４の如く、基部をピン２８で
枢支したので、シリンダ２９で水平回転でき、位置調整
がより容易となった。According to the construction of the first aspect, the steel pipe pile 7 is suspended by the floating crane on the pedestal A, and the intermediate portion of the steel pipe pile 7 is also suspended by the special catch fork 8 provided on the pedestal A. Since it is embraced, a leader is not required unlike the conventional work, and the capacity of the floating crane can be further reduced. Further, since the catch fork embedment portion is rotatably mounted via the rotary bearing 24 and the cylinder 23, the circumferential position of the catch fork can be easily adjusted. Further, according to claim 3,
A large number of piles can be driven by moving the hanger 25 by the cylinder 27 without moving the gantry A, thereby improving the efficiency. Further, since the base is pivotally supported by the pin 28, the cylinder 29 can be horizontally rotated, and the position adjustment becomes easier.
【図１】本発明の杭打船。FIG. 1 shows a pile driving ship according to the present invention.
【図２】海洋作業船杭打用特殊キャッチフォ−クの側面
図。FIG. 2 is a side view of a special catch fork for driving a marine work boat pile.
【図３】海洋作業船杭打用特殊キャッチフォ−クの平面
図。FIG. 3 is a plan view of a special catch fork for driving a marine work boat pile.
【図４】回転機構を備えたキャッチフォ−クの側面図。FIG. 4 is a side view of a catch fork provided with a rotation mechanism.
【図５】回転機構を備えたキャッチフォ−クの平面図。FIG. 5 is a plan view of a catch fork provided with a rotation mechanism.
【図６】従来型杭打船の側面図。FIG. 6 is a side view of a conventional pile driving boat.
Ａ 船台 １ 旋回式フロ−ティングクレ−ン ２ リ−ダ ３ ブ−ム ４ キャッチフォ−ク ５ バイブロ又はハ
ンマ− ６ パイルキャッチ ７ 鋼管パイル ８ キャッチフォ−ク 8a，8b 入れ子式部
材 8c (部材8bの端に固設した)フレ−ム ９ 油圧ユニット 10 配管 11 補助フック 12，13 フレ−ム 14 ロ−ラ 15 基板 16，17 抱込シリンダ 18 点検場 19 シリンダ 20 フレ−ム 21 フレ−ム 22 シリンダ 23 シリンダ 24 回転軸受 25 ハンガ− 26 レ−ル 27 シリンダ 28 ピン 29 シリンダA stool 1 revolving floating crane 2 leader 3 boom 4 catch fork 5 vibro or hammer 6 pile catch 7 steel pipe pile 8 catch fork 8a, 8b telescopic member 8c (member 8b 9) Hydraulic unit 10 Piping 11 Auxiliary hook 12, 13 Frame 14 Roller 15 Substrate 16, 17 Holding cylinder 18 Inspection area 19 Cylinder 20 Frame 21 Frame 22 Cylinder 23 Cylinder 24 Rotary bearing 25 Hanger 26 Rail 27 Cylinder 28 Pin 29 Cylinder
───────────────────────────────────────────────────── フロントページの続き (72)発明者 増本 征伸 愛媛県西宇和郡保内町宮内１番耕地465 −１ 堀田建設株式会社 海事部内 (72)発明者 森 明夫 兵庫県三原郡南淡町賀集501番地 株式 会社森長組内 (72)発明者 五郡 晃一郎 東京都中央区新川一丁目28番44号 住友 建機株式会社内 (56)参考文献 特開 平７−197461（ＪＰ，Ａ) 特開 昭56−159427（ＪＰ，Ａ) 実開 昭61−116837（ＪＰ，Ｕ) 実開 昭61−116836（ＪＰ，Ｕ) 実開 平４−30185（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 7/00 - 13/10 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masanobu Masumoto 465-1 Miyauchi, Honai-cho, Nishi-Uwa-gun, Ehime Prefecture Maritime Department, Horita Construction Co., Ltd. (72) Inventor Koichiro Gogori 1-28-44 Shinkawa, Chuo-ku, Tokyo Sumitomo Construction Machinery Co., Ltd. (56) References JP-A-7-197461 (JP, A) JP-A Sho56 159 427 (JP, A) Fully open Showa 61-116837 (JP, U) Fully open Showa 61-116836 (JP, U) Really open 4-30185 (JP, U) (58) Field surveyed (Int. Cl) .7, DB name) E02D 7/ 00-13/10
Claims (4)
−ン(１)のブ−ム(３)にて吊下げたバイブロ(又はハン
マ)(５)で鋼管パイル(７)を吊り、船台(Ａ)に設置した
特殊キャッチフォ−ク(８)で鋼管パイル(７)の中間部を
抱込んで保持するようにした杭打ち装置であって、前記
特殊キャッチフォ−ク(８)は、シリンダ(22)で入れ子式
に伸縮可能な２個の部材(8aと8b)で構成された基部と、
該基部を構成する部材(8b)の端に設けたフレ−ム(21)に
横フレ−ム(20)と複数のシリンダ(19)とを介し取付けら
れた基板(15)と、該基板(15)にピン結合され、かつ抱込
シリンダ(16，17)で互に屈曲可能にピン結合された上下
一対の抱込み用フレ−ム(12，13)とからなることを特徴
とする海洋作業船用の杭打ち用特殊キャッチフォ−ク。1. A steel pipe pile (7) is suspended by a vibro (or hammer) (5) suspended by a boom (3) of a floating crane (1) provided on a stool (A). A special catch fork (8) installed on a stool (A) for holding and holding an intermediate portion of a steel pipe pile (7), wherein the special catch fork (8) is provided. Is a base composed of two members (8a and 8b) that can be telescopically extended by a cylinder (22),
A board (15) attached to a frame (21) provided at an end of a member (8b) constituting the base via a horizontal frame (20) and a plurality of cylinders (19); Marine work characterized by comprising a pair of upper and lower embracing frames (12, 13) pin-connected to each other by a pin (15) and mutually bendable by embracing cylinders (16, 17). Special catch fork for pile driving for ships.
(8b)の端とフレ−ム(21)との間に回転軸受(24)を設け、
シリンダ(23)で回転可能にした請求項１の海洋作業船用
の杭打ち用特殊キャッチフォ−ク。2. One of telescopic members constituting a base
A rotary bearing (24) is provided between the end of (8b) and the frame (21),
2. The special catch fork for stakeout of an offshore work boat according to claim 1, wherein the catch fork is rotatable by a cylinder (23).
ガ−(25)を設け、これを船台(Ａ)上に設けたレ−ル(26)
上に跨らせ、横方向に摺動可能にした請求項１又は請求
項２の海洋作業船用の杭打ち用特殊キャッチフォ−ク。3. A rail (26) provided with a hanger (25) at the base of the special catch fork (8) and provided on the gantry (A).
The special catch fork for pile driving for a marine work boat according to claim 1, wherein the special catch fork is laid on the top and slidable in the lateral direction.
(Ａ)上に立設したピン(28)で枢支され、船台(Ａ)上に装
着したシリンダ(29)でキャッチフォ−ク(８)を円周方向
に調整可能にした請求項１の海洋作業船用の杭打ち用特
殊キャッチフォ−ク。4. The base of the special catch fork (8) is a slide
The catch fork (8) is pivotally supported by a pin (28) erected on the (A), and the catch fork (8) can be adjusted in a circumferential direction by a cylinder (29) mounted on the stand (A). Special catch fork for pile driving for marine work boats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7271172A JP3056404B2 (en) | 1995-10-19 | 1995-10-19 | Special catch fork for pile driving for marine work boats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7271172A JP3056404B2 (en) | 1995-10-19 | 1995-10-19 | Special catch fork for pile driving for marine work boats |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09111764A JPH09111764A (en) | 1997-04-28 |
| JP3056404B2 true JP3056404B2 (en) | 2000-06-26 |
Family
ID=17496351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7271172A Expired - Lifetime JP3056404B2 (en) | 1995-10-19 | 1995-10-19 | Special catch fork for pile driving for marine work boats |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3056404B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100733263B1 (en) * | 2006-04-29 | 2007-06-28 | 삼보지질 주식회사 | Guide frame apparatus for piling of casing and construction of inserting inconcrete pile on the sea or on the river |
| KR100799724B1 (en) * | 2006-07-05 | 2008-02-04 | 은성기초건설(주) | Apparatus for adjusting a construction angle of a pile |
| JP5306863B2 (en) * | 2009-03-09 | 2013-10-02 | 鹿島建設株式会社 | Transport method and work boat |
| KR101300281B1 (en) * | 2010-12-06 | 2013-08-26 | 주식회사 영창토건 | Steel plate insertion device and method by using auger sticking vibro-hammer |
| CN103898908A (en) * | 2014-03-10 | 2014-07-02 | 中交一航局第三工程有限公司 | Method for planting piles in seabed bare rock or shallow overburden area through balancing weights |
| CN109305295B (en) * | 2017-07-27 | 2019-08-13 | 中国船舶重工集团公司第七一九研究所 | A kind of shifting fork mechanism driving fluid slip ring |
| NL2022947B1 (en) * | 2019-04-15 | 2020-10-22 | Itrec Bv | A vessel and method for installation of a pile adapted to support an offshore wind turbine |
-
1995
- 1995-10-19 JP JP7271172A patent/JP3056404B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09111764A (en) | 1997-04-28 |
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